Sharp XE-A301 - VAT;TAX COMPUTATION; VAT;Tax System Overview

XE-A301V CIRCUIT DIAGRAM AND PWB LAYOUT
– 17 –
A B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A A
B
C D
87654
3
21
12345678
D C
B A
3/7
EFCB322513TS(FB14-FB21)
IC21 VCC : 14Pin
GNG : 7Pin
D0 D1 D2 D3 D4 D5 D0 D1 D2 D3
TM1
TM
VH
/JPES /RPES
/RPFA /RPFB /RPFC /RPFD
/JPFA /JPFB /JPFC /JPFD
CUTM- CUTM+ VRCOM VJCOM
PHUPS
CUTS
P91 P91
/S2
VREF
/S4
JAS JBS JCS JDS
RAS RBS RCS RDS
P91
/S3
/WR
/RD
/CS1
D[0..5]
VHCOM
/RES
/RES
/RES
VCC
VCC VCC
VCC
+24V
+24V
+24V
+24V
VCC
+24V
VCC
VCC
D2
1SS353
C70
1000pF
FB30
*EFCB322513TS
Q3
KRC111S
FB22
EFCB322513TS
C71
330pF
R78 4.7K R79 4.7K
C67
100pF
IC10B *74VHC32
4 5
6
C125 *47pF
C77
330pF
C68
0.1uF
F1
T1.6A/250V(LT-5)
R80 240
C72 *0.1uF
FB13
EFCB322513TS
FB18
FB28
EFCB322513TS
IC15
KIA431F
1 3
2
C69
10uF/50V
R75 18KF
FB19 FB20
R88 100K
FB15
IC17
STA471A
2 4 6 8
1
10
3 5 7 9
R76
4.7K
FB21 FB16
C75 0.1uF
R77 20K
R93
10K
FB26
EFCB322513TS
Q8
*MTD2955V
R81 *10K
R89 100K
C76 0.1uF
IC16A BA10393F
3 2
1
4
8
R82 5.6K
IC16B
BA10393F
5 6
7
4
8
FB17
IC10C *74VHC32
9
10
8
R83
10K
Q1
*C2412K
IC21B *74HC125
56
4
D1
*1SS353
R138
*1W 8.2
R84 *33K
R85
*10K
JP1
[0 SHORT]
Q2 C2412K
Q7
MTD2955V
C73
2200uF/35V
R90
*1K
R87
*1K
FB27
EFCB322513TS
FB25
EFCB322513TS
C74
*0.1uF
C80 *10uF/50V
IC19 *TA8428K
3 5
4
7
1 2 6
IC21A *74HC125
23
1
Q4
KRC111S
D3
1SS353
R91
1K
R97 *2.2K
Q6
KRC111S
D5
1SS353
IC18
STA471A
2 4 6 8
1
10
3 5 7 9
R92
1K
C79
1000pF
R136 47K
IC21D *74HC125
12
11
13
FB24
*EFCB322513TS
FB14
IC21C *74HC125
98
10
IC20 *74HC174
3 4 6
11 13 14
9 1
2 5 7 10 12 15
D1 D2 D3 D4 D5 D6 CLK CLR
Q1 Q2 Q3 Q4 Q5 Q6
R137 *47K
FB29 *EFCB322513TS
FB23
EFCB322513TS
+
-
+
-
+